MIPLIB 2017 Infeas

shs1023

primal-infeasible

The instance

as published
Variables
444,625
Constraints
133,944
Nonzeros
1,044,725
Format
MPS, gzipped

Where it comes from

provenance

A branch-and-bound run reached this node's parent and split on a variable. This instance is the side the search did not explore, and it has no feasible point.

branch taken by the search
x441719 ≤ 0
this instance, the other side
x441719 ≥ 1 at depth 751
Depth in the tree
751
Bounds tightened vs. source
4,650
Branch variable
x441719

Tightened bounds

4,650 entries
x354<=0x376<=0x919<=0x2118<=1x2141<=0x2505<=0x3067<=0x3077<=0x4406<=0x4410<=0x4414<=0x4426<=0

12 of 4,650 shown. The complete list is in the sidecar.